So you think that a dip of tobacco helps at work? You say it increases your "focus" and leaves your hands free? A study by the University of Maryland and Arizona State University shows that smokeless tobacco users learn and adjust to new tasks at a slower rate than non-tobacco users.
o Participants performed a baseline task first. Tobacco users had eight hours of no tobacco. There was no difference between the tobacco users and non-tobacco users in this task.
o Tobacco users were given a pinch before the second task, which was slightly different. They tested significantly below the level of non-users on accuracy and smoothness of movement in the second test.
o The third test was the same as the first. Non-tobacco users continued to improve while chewers did not.
Many smokeless tobacco users think that chew/dip increases performance. This is what tobacco advertising and the association with sports (especially baseball) implies. In fact, smokeless tobacco reduces performance. Chewing tobacco is not a safe alternative to cigarettes
Source: Nicotine and Tobacco Research, November, 2000